Genelec 8250A, 8240A manual Treble Tilt control

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This feature is designed to compensate for the boost often occurring at this frequency range when the loudspeaker is placed upon a meter bridge, table or similar reflective surface.

Treble Tilt control

Treble Tilt control (switches 6 and 7) allows adjusting the treble response above 5 kHz by +2 dB, -2 dB or -4 dB, which can be used for correcting an excessively bright or dull sounding system or to compensate for high frequency level loss if the loudspeaker is placed behind a screen.

An acoustic measuring system such as MLSSA or WinMLS is recommended for analyzing the effects of the adjustments, however, careful listening with suitable test recordings can also lead to good results if a test system is not available. The table below shows some typical settings in various situations.

Always start adjustment by setting all switches to "OFF” position. Measure or listen systematically through the different combinations of settings to find the best frequency balance. See table below for some typical settings in various situations. Please note that the GLM Loudspeaker Controller allows a much more versatile and precise set of controls to be used, and supports the fully automatic system alignment feature, the Genelec AutoCal.

Loudspeaker Mounting Position

Treble Tilt

Bass Tilt

Bass Roll-Off

Desktop

 

 

 

 

 

Flat anechoic response

None

None

None

None

Free standing in a damped room

None

-2 dB

None

None

 

 

 

 

 

Free standing in a reverberant

None

-4 dB

None

None

room

 

 

 

 

Near field on a reflective surface

None

-2 dB

None

-4 dB

In a corner

None

-4 dB

-4 dB

None

 

 

 

 

 

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Contents Dsp Page Introduction EC Declaration Of ConformityCompliance to FCC Rules System DriversAmplifiers Using the 8240A and 8250A in STAND-ALONE Mode Mains Input connectorConnections Digital Thru AES/EBU connector Digital in AES/EBU connectorAnalog in connector Control Network connectorsAlign the loudspeakers correctly Mounting ConsiderationsMaintain symmetry Minimise reflectionsFunctions on switch group 1 Tone controls Setting the input sensitivityTreble Tilt control Stored / Manual Ctrl Functions on Switch GroupDriver Mute System LvlSafety considerations MaintenanceGuarantee 8240A Accessories8250A Accessories 8240A 8250A Specifications8240A 8250A